1 Future. Ready. SM Case Study United Illuminating Benefits from Gridstream MDMS Flexibility and Time Saving Automation Overview The United Illuminating Company (UI) is a New Haven, Connecticut investor owned electric distribution company established in 1899. It serves over 325,000 residential, commercial and industrial customers in the Greater New Haven and Bridgeport areas. In 2010, UI upgraded their one-way daily meter reading system, installed in 1999, to a hybrid AMR/AMI solution, a combination of one-way meters and FOCUS ® AXR-SD and FOCUS AXR (two-way) meters, using the Gridstream ® RF mesh network. From the start, the UI goal was to tap into daily and interval data in billing and distribution operations for: ¦ Time of Day (TOD) Billing ¦ Outage detection ¦

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